package com.atguigu.springcloud.controller;

import com.atguigu.springcloud.entities.CommonResult;
import com.atguigu.springcloud.entities.Payment;
import com.atguigu.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
public class PaymentController {
    //controller调service，service调dao

    @Resource
    private PaymentService paymentService;

    //获得端口号，有8001，8002两个，看是哪个
    @Value("${server.port}")
    private String serverPort;

    @Resource
    private DiscoveryClient discoveryClient;

    @PostMapping(value = "/payment/create")
    public CommonResult create(@RequestBody Payment payment){
        int result = paymentService.create(payment);
        log.info("*****插入结果："+result);
        if(result > 0) {
            return  new CommonResult(200,"插入数据库成功，serverPort: "+serverPort,result);
        }else{
            return  new CommonResult(444,"插入数据库失败, ",null);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id){
        Payment payment = paymentService.getPaymentById(id);

        if(payment != null) {
            return  new CommonResult(200,"查询成功,serverPort: "+serverPort,payment);
        }else{
            return  new CommonResult(444,"没有对应记录，查询ID："+id,null);
        }
    }

    @GetMapping(value = "/payment/discovery")
    public Object discovery(){
        //微服务名称有哪几个，获得的是一个服务清单列表
        List<String> services = discoveryClient.getServices();
        for (String element : services) {
            log.info("****element"+element);
        }

        //获得微服务名称后，进一步获得微服务的信息，看看一个微服务下面的具体实例
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId()+"\t"+instance.getHost()+"\t"+instance.getPort()+"\t"+instance.getUri());
        }
        return this.discoveryClient;
    }

    @GetMapping(value = "/payment/lb")
    public String getPaymentLB(){
        return serverPort;
    }


    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout(){
        //暂停几秒钟线程
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return serverPort;

    }

    @GetMapping("/payment/zipkin")
    public String paymentZipkin() {
        return "hi ,i'am paymentzipkin server fall back，welcome to atguigu，O(∩_∩)O哈哈~";
    }

}
